Comparison

学習時間積算計 vs Sūji

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

学習時間積算計

Features
Read full description

文法、演習、単語、シャドウイング等々の各項目を何分勉強したかを「積算」するアプリです。 積算タイマーには、リアルタイムの日時(年・月・日・曜日)と時間(時・分・秒)が表示されます。 ・経過(積算)時間は「START」ボタンを押すと開始され、押すごとに「START」と「PAUSE」が表示され「PAUSE」表示されているときは経過(積算)時間は停止しています。経過(積算)時間をリセットするには「CLR」ボタンを押します。 ・勉強(練習)の項目は4つあり、各項目名は自分で入力します。変更・編集が可能です。 ・各項目には「積算時間」の表示と積算時間の追加、置換、CLRの3つのボタンがあります。「追加」ボタンは表示されている積算時間にタイマーの時間がプラスされ「置換」ボタンは表示されている積算時間をタイマーの時間に入れ替え「CLR」ボタンは積算時間をリセットします。 ・下段の「記録」ボタンを押すと」記録ページに移動します。 ・記録ページには記録場所が5つあり、各番号の「#」ボタンを押すと「積算タイマー」ページの項目4つの表示が「日時時間、各項目の積算時間、各項目名」が表示されます。・下段にある「データ保存」ボタンを押すと、アプリを停止した後も「データ読出」ボタンで再表示することができます。

About

Sūji

Learn Japanese numbers with this app. It translates numbers into Kanji, Hiragana, or Romaji, and provides audio pronunciation. You can also generate random numbers to explore new combinations.

Highlights
  • Number translation to Kanji, Hiragana, Romaji
  • Audio pronunciation of numbers
  • Random number generation
  • Supports multiple writing systems
  • Practice writing and speaking
Features
Read full description

Sūji is your companion if you are learning the numbers in Japanese, both writing and pronunciation. Type in a number and get its translation written in Kanji, Hiragana or Romaji. If it helps to hear how it is pronounced, Sūji reads the number to you so you can repeat it. And if you can't think of a number to translate, you can generate random numbers to discover new combinations.

Screenshots

学習時間積算計3 screens
Sūji2 screens

Verdict

The call

The clearest difference is update cadence: Sūji at every 4 months against 学習時間積算計's every 51 months. Sūji also leads on device support (6 vs 3). 学習時間積算計's advantage is iOS requirement (12.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for 学習時間積算計 against 5.0 for Sūji. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

学習時間積算計 ships an update every 51 months, Sūji every 4 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 6 level
学習時間積算計 versus Sūji: the parameters behind the verdict, then further details
Parameter学習時間積算計Sūji
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 51 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — better
Requires iOS12.0 — better17.0
Further details — not scored
Size108 MB4 MB
Age rating4+4+
Developermasaki murayamaAle Mohamad

Customer experience

学習時間積算計

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Sūji

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

学習時間積算計

No in-app purchases

None

Sūji

No in-app purchases

Questions

Is 学習時間積算計 free?
学習時間積算計 is free to download, with no in-app purchases.
Is Sūji free?
Sūji is free to download, with no in-app purchases.
Which has better reviews, 学習時間積算計 or Sūji?
学習時間積算計 and Sūji are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do 学習時間積算計 or Sūji have ads?
Neither 学習時間積算計 nor Sūji shows ads.
Which is updated more often, 学習時間積算計 or Sūji?
学習時間積算計 ships an update every 51 months, and Sūji every 4 months. Most recently, 学習時間積算計 was updated on November 2, 2026 and Sūji on November 6, 2026.

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